Determinación de la eficiencia de la Estación de monitoreo de calidad del aire del GAD Municipalidad de Ambato mediante los contaminantes dióxido de nitrógeno y ozono.

Abstract

In the current research was carried out the determination of Air Quality Monitoring Station efficiency from Gobierno Autónomo Descentralizado Municipal de Ambato (GADMA) in function of concentration of nitrogen dioxide and ozone. 21 monitoring points were stablished at random for doing the passive sampling of nitrogen dioxide and ozone from June and July 2017. Collector tubes were prepared with a solution of 1,2 di 4-piridyl ethylene (DPE) for ozone and a triethanolamine solution (TEA) for nitrogen dioxide. An analysis by spectrophotometry was done. Metil-2-benzotiazolinone hydrazone hydrochloride (MBTH) was used for ozone to a wavelength of 42 nm. For the nitrogen dioxide analysis was used N-1 Naftiletilendiamine (NEDA) and sulphanilamide to a wavelength of 540 nm. Bar graphics were done, where the number of points that exceed the concentration levels reported for the Station were determined. Through a correlation analysis in SPSS software, it was determined that for the ozone there is not meaningful relation between reported data for the Station and the data of passive sampling. While for the nitrogen dioide the relation between the reported data by the Station and the passive sampling data is moderate. Concentration maps were done with interpolation method Kriging in ArcGIS software. It is concluded that the Monitoring Station is efficient in a 37.8% for the tropospheric ozone measurement and 47.6% for the nitrogen dioxide measurement. It was determined that the traffic circle of Huachi Chico and the Atahualpa avenue are the zones with major concentrations of Nitrogen dioxide and ozone. According to the results it is recommended relocate the Station to 800 meters in South-East bound.